Siemens SINUMERIK 840D sl Function Manual page 622

K1: Mode group, channel, program operation, reset response
9.17 Replacing functions by subprograms
MD10719 $MN_T_NO_FCT_CYCLE_MODE, bit 1 and bit 2
Bit 2
0
0
1
System variable for the call time
System variable $P_SUB_STAT can be used to read whether the substitution is active, and if
so, when the replacement subprogram – referred to the block – was called up:
Value Meaning
0
1
2
Example: Replacement of the T function
Parameterization
MD22550 $MC_TOOL_CHANGE_MODE = 0
MD10717 $MN_T_NO_FCT_CYCLE_NAME = "MY_T_CYCLE"
MD10719 $MN_T_NO_FCT_CYCLE_MODE = 0
Programming
N110 D1
N120 G90 G0 X100 Y100 Z50
N130 D2 X110 Z0 T5
A detailed example for replacement of the T function can be found in Section: "Examples of
M/T function replacement at a tool change (Page 624)".
622
Bit 1 Time that the replacement subprogram is called
0 At the end of the block
After the replacement subprogram has been executed, the interpretation is resumed
with the program line following the line that triggered the replacement operation.
1 At block start
After the replacement subprogram has been executed, the program line, which re‐
sulted in the replacement subprogram being called, is interpreted. The T address
and the D or DL address and the M function for the tool change are no longer pro‐
cessed.
- At block start and block end
The replacement program is called twice.
Replacement not active
Replacement active, subprogram call is made at the block start
Replacement active, subprogram call is made at the block end
Comment
; D1
; D1 is active.
; D1 remains active. The T function is replaced
at the block end with the MY_T_CYCLE subpro-
gram call. D2 provides MY_T_CYCLE in a system
variable.
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Meaning
Tool change with T function
Name of the subprogram to re‐
place the T function
Call time: End of block
Basic Functions